diff options
| author | Gaurav Jain | 2022-04-15 16:52:34 +0530 |
|---|---|---|
| committer | Stefano Babic | 2022-04-21 15:18:25 +0200 |
| commit | cc84edddd17ed6eedbd17ad1ab9672854ec5fa27 (patch) | |
| tree | 4882ba3ad83673cea353e25cab6f400c400a5f72 /drivers | |
| parent | e3b330e489e777d4cf0d8d83e4d89cfe674ed597 (diff) | |
crypto/fsl: Clear the memory when blob decapsulation fails
issue: blob decapsulation operation store the decrypted data
in memory even if ICV check failed.
fix: clear the blob data output memory.
Fixes: c5de15cbc8 (crypto/fsl: Add command for encapsulating/decapsulating blobs)
Signed-off-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Kshitiz Varshney <kshitiz.varshney@nxp.com>
Tested-by: Kshitiz Varshney <kshitiz.varshney@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/fsl/fsl_blob.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/fsl/fsl_blob.c b/drivers/crypto/fsl/fsl_blob.c index e8202cc5697..9b6e4bca062 100644 --- a/drivers/crypto/fsl/fsl_blob.c +++ b/drivers/crypto/fsl/fsl_blob.c @@ -71,6 +71,10 @@ int blob_decap(u8 *key_mod, u8 *src, u8 *dst, u32 len) ret = run_descriptor_jr(desc); if (ret) { + /* clear the blob data output buffer */ + memset(dst, 0x00, len); + size = ALIGN(len, ARCH_DMA_MINALIGN); + flush_dcache_range((unsigned long)dst, (unsigned long)dst + size); printf("Error in blob decapsulation: %d\n", ret); } else { size = ALIGN(len, ARCH_DMA_MINALIGN); |